Australian Cockroaches

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Two cockroaches on a wooden surface. The insect on the left is slightly smaller and facing left, while the one on the right is larger, facing right, and is more prominently visible. The background is blurred, highlighting the insects.

What do Australian Cockroaches Look Like?

Australian roaches are often mistaken for the smaller (1-1/4”) American Roach. However, they are distinct from American Cockroaches in a few ways:

  • They can measure approximately 1 to 1.5 inches in length.
  • Coloration: They have a dark brown or mahogany color, often described as “smoky brown”.
  • Wings: Australian cockroaches possess fully developed wings that extend beyond the length of their bodies. These wings enable them to fly, although they are not strong fliers and prefer to glide short distances.
  • When are Australian Cockroaches Most Active?

    Like many roaches, Australian roaches are nocturnal. They come out at night to hunt for food and water and during the day they hide away in dark, moist areas.

    What Attracts Australian Cockroaches?

    Australian roaches are attracted to light sources and moisture-rich areas.

    Where are you likely to find Australian Cockroaches?

    These roaches prefer to be outside. If they are indoors, it is likely because they have accidentally been brought in by the homeowner via a cardboard box, potted plant, etc.. Outdoors, they are usually found:

  • Under tree bark
  • In piles of firewood and mulch
  • In gardening beds
  • Under rocks

  • Do Australian Cockroaches fly?

    Yes, Australian cockroaches are capable of flying. They have well-developed wings that allow them to fly relatively long distances compared to other cockroach species. However, while they have the ability to fly, they are not strong fliers and prefer to glide rather than engage in sustained flight.

    Are Australian Cockroaches dangerous?

    Australian roaches are both dangerous and destructive. Once an Australian roach is indoors, they have been known to eat holes in clothing and feed upon household items like book covers, making them quite destructive. And, in true roach fashion, these creatures come in contact with some nasty germs and disease-causing pathogens in their travels through sewers and trash, which they then so generously leave on your counters, in your pantry, and all over your home. This puts Australian roaches in the “danger column” for health risks.

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